9 Very Rare (and Very Expensive) Video Game Cartridges

If you've ever collected baseball cards, comic books, stamps, or maybe those limited edition commemorative plates, you understand the concept of the "Holy Grail" item. It's that last, hard-to-find, incredibly rare, usually expensive piece that you have to have before you can officially say your collection is complete. If you're a collector of vintage home video game cartridges (or "carts"), sometimes that can mean paying a pretty penny for the pièce de résistance.

Nintendo Entertainment System (NES)

Back in the day, everyone had a Nintendo. Due to the console's popularity, there are a large number of collectors willing to pay the equivalent of a new car for some of the systems' very rare carts.

1. Stadium Events

Price Range: $13,000 - $41,300; $10,000 for the box aloneWhy So Expensive?:Stadium Events was released by Bandai in 1987 as one of the few games available in America that was made for the company's Family Fun Fitness mat, a soft, plastic controller you walked, ran, and jumped on to make the characters move. Nintendo bought the rights to the game and the Fitness mat in 1988 and re-released them as World Class Track Meet and the Power Pad controller. To avoid consumer confusion, Nintendo pulled all copies of Stadium Events from shelves and had them destroyed, but not before approximately 200 carts had already been sold. Of those 200, collectors believe that only 10 to 20 complete copies of the game exist today, making them a real rarity.

Stadium Events recently made headlines with two high-profile eBay sales. A North Carolina woman was cleaning out her garage and found an old Nintendo and a handful of games, including Stadium Events. She put them up on eBay without high expectations and was amazed to see the bids steadily climb up to $13,105 by the time the auction ended on February 13, 2010. While the game itself is valuable, the winning bidder was most interested in the cardboard box it came in. Since most kids threw the box away after tearing open a new game, intact boxes for any game are really hard to come by, but especially so for Stadium Events. Empty Stadium Event boxes have been known to sell for $10,000 alone.

After hearing of the success of this eBay seller, a man in Kansas dug up a factory-sealed copy of the game that he was just about to donate to Goodwill because he thought it was pretty much worthless. However, his game became only the second known sealed copy in existence. He'd purchased the game in 1987, but could never find the Fitness mat to go with it. It was still sealed because he'd meant to return it. When his eBay auction ended on February 26, 2010, the game sold for an amazing $41,300.

The same game repackaged by Nintendo, World Class Track Meet, generally sells for less than $3 on eBay.

2. 1990 Nintendo World Championships (Gray and Gold Editions)

Price Range: Gray: $4,000 - $6,100; Gold: $15,000 - $21,000Why So Expensive?: In 1990, Nintendo held a 30-city gaming tournament to find the best player in the world. Players had to get the best score in demo versions of three games "“ Super Mario Bros., Rad Racer, and Tetris—all within a six-minute time limit.

At the end of each city's tournament, the winners of each of three age groups were given special gray Championship cartridges exactly like those used in the competition, which means only 90 of these cartridges were distributed. The gold version was sent out to those who won a promotional contest in the pages of Nintendo Power magazine. Only 26 gold games were produced, so they're especially hard to find and command a higher price today.

3. Nintendo Campus Challenge

Price Range: $14,000 - 20,100Why So Expensive?: In the early 1990s, Nintendo held competitions on college campuses and at popular Spring Break destinations. Like the World Championships, players had six minutes to play for high scores on demo versions of Super Mario Bros. 3, PinBot, and Dr. Mario.

Most copies of the game were destroyed after the competition ended, but one Nintendo employee kept his cart and sold it to Rob Walters at a garage sale in 2006. This garage sale is legendary among retrogamers, as Rob bought all kinds of NES Holy Grails for only $1,000. By the time he re-sold everything, he'd made 50 times that. Part of that $50,000 was the Campus Challenge cartridge, which went for $14,000. Shortly after, the buyer of the cart turned around and sold it on eBay for $20,100. As far as anyone knows, it's the only copy of the game in the world.

ATARI 2600

The wood-grained grandpappy of home video game systems still has a rabid fanbase. And those Atari enthusiasts wish to recapture the days of playing these simple games while drinking Pepsi from glass bottles and listening to Foghat.

4. Atlantis II

Price Range: $5,000 - $6,000Why So Expensive?: It's never mentioned in the same breath as Pac-Man or Donkey Kong, but Atlantis was a pretty popular game in 1982. The gameplay was similar to Missile Command, with players defending their base from overhead attack by enemy ships. The developer held a tournament called Destination Atlantis, where players were invited to send in photos of their TV screens displaying their high scores. The best players were then sent Atlantis II, a special edition of the game that featured faster enemy ships worth fewer points, making it harder to get a high score, but easier to determine the true champions.

Because this version was not mass produced, its pretty rare today. But if you find a copy of the original Atlantis at a garage sale, it might be a good idea to pick it up anyway. The competition cart had the exact same colorful label of the regular Atlantis, but had a small, white sticker slapped on the front that read "Atlantis II." The label was easily peeled off, so a quick Google search will show you how to determine if you bought a $3 Atari game or a $6,000 one.

5. Air Raid

Price Range: $1,000 - $3,000Why So Expensive?:Air Raid is a bit of an enigma for Atari fans. Some say it was the one and only game produced by a company called "Menavision" (or perhaps "Menovision"). The game is so shrouded in mystery, it can't even be verified that "Air Raid" is its official title—there's no name on the label. The name has been given based on the gameplay, which is similar to Atlantis and Missile Command, and by the picture on the label of a city being attacked by flying saucers, jets, and helicopters. This strange cartridge appeared around 1984 in a bright blue "T-handle" casing that is very different from the standard, square, black Atari carts sold in North America, but is similar in style to those sold in Brazil. Furthermore, while a few second-hand copies have been sold, no one can ever say they were the original owner. The mystery, as well as the fact there are only 12 known copies, make it a must-have for serious Atari collectors.

6. Star Wars Ewok Adventure

Price: $1680Why So Expensive?: Advertised in Parker Brothers' 1983 retail catalog as Revenge of the Jedi: Game I but affectionately known as Ewok Adventure, the cart became legendary for never being sold. In the game, players took control of an Ewok and flew a hang glider over the forest moon of Endor in an attempt to blow up an Imperial base. You could avoid or kill enemy Stormtroopers, Speeder Bikes, or Imperial AT-ST Walkers, or you could instead commandeer these vehicles to take out the base.

The game was shot down by Parker Brothers' marketing department, who felt the controls were too hard to master, so it was never produced. The game's designer, Larry Gelberg, gave the one and only known prototype copy to a friend's son, who later sold it for $1680.

Neo Geo

The Neo Geo, first released in 1990, was always a bit of a niche home video game console, mainly because of its price—the system was $649 and games started at $200. However, those who had a Neo Geo really loved it, so the collectors' market has remained strong.

7. Kizuna Encounter

Price Range: $12,000 - $13,500

Why So Expensive?: One of the main games that all Neo Geo fanatics are looking for is a particular version of Kizuna Encounter, a 1996 fighting game similar to Mortal Kombat or Street Fighter. The game itself has received solid reviews, but isn't groundbreaking by any means. However, it was produced in such small quantities for the European market that collectors speculate fewer than 15 copies were made. The Japanese version, which is exactly the same except for different packaging, is fairly common and sells for about $50.

8. Ultimate 11 (AKA Super Sidekicks 4)

Price Range: $8,000 - $10,000Why So Expensive?:Ultimate 11 was the final game in the Super Sidekicks series, a popular franchise of soccer games that sold very well. For some reason, though, Ultimate 11 was not produced in large quantities, and there are now fewer than 10 known copies in existence. That kind of rarity makes it a must-have for collectors.

In late 2009, a private sale was reportedly made between two members of the collectors' forums at neo-geo.com. The buyer paid an astonishing $55,000 to acquire both Kizuna Encounter and Ultimate 11. The original owner purchased the games around 10 years ago, when Kizuna was selling for $500 and Ultimate for $400. The new owner has said he will not sell them, even if he were offered $100,000.

9. Metal Slug

Going Rate: $2,000 - $2,850Why So Expensive?: If you take the classic NES game Contra and turn it up to 11, you have Metal Slug, a "run-n-gun" game where explosions are the primary soundtrack. Since its introduction on the Neo Geo in 1996, the game has become a very popular franchise with seven games in the main series, plus a bunch of spin-offs. It has been ported to just about every popular game console you can think of. However, that original Neo Geo cart is pretty hard to come by due to a limited production run. So even though there are other ways to play the game, Neo Geo fanatics will pay a hefty sum to have it in the original format.* * * * * *
These are just some of the Holy Grails of video gaming that collectors are clamoring for. To see if you might have a rare game in your basement, head over to racketboy.com, atariage.com, neo-geo.com and videogamepricecharts.com.

Incredible Update!

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Mattel wants to help 10 million kids learn to code by 2020, and the toy giant is enlisting one of its most career-focused assets: Barbie. According to Engadget, Mattel is working with the coding education company Tynker to make seven Barbie-themed computer programming lessons.

Barbie has been a pilot, an architect, the president, and a computer engineer, so there may be no better character to teach kids the joys of coding. The lessons, arriving in summer 2018, will be designed for youngsters in kindergarten and up, and will teach Barbie-lovers more than just how to make apps. They’ll use Barbie’s many careers—which also included veterinarian, robotics engineer, and astronaut—as a way to guide kids through programming concepts.

There are plenty of new initiatives that aim to teach kids how to code, from a Fisher-Price caterpillar toy to online games featuring Rey from Star Wars. This is the third partnership between Mattel and Tynker, who have already produced programming lessons using Hot Wheels and Monster High.

Kindergarten may seem a little soon to set kids on a career path as a computer programmer, but coding has been called “the most important job skill of the future,” and you don’t need to work for Google or Facebook to make learning it worthwhile. Coding can give you a leg up in applying for jobs in healthcare, finance, and other careers outside of Silicon Valley. More importantly for kids, coding games are fun. Who wouldn’t want to play Robotics Engineer Barbie?

Shopping malls, once the cultural hub of every suburb in America, have become a punchline in the e-commerce era. There are plenty of malls around today, but they tend to be money pits, considering the hundreds of "dead malls" haunting the landscape. Just how hard is it to keep a mall afloat in the current economy? American Mall, a new video game from Bloomberg, attempts to give an answer.

After choosing which tycoon character you want as your stand-in, you're thrown into a mall—rendered in 1980s-style graphics—already struggling to stay in business. The building is filled with rats and garbage you have to clean up if you want to keep shoppers happy. Every few seconds you're contacted by another store owner begging you to lower their rent, and you must either take the loss or risk them packing up for good. When stores are vacated, it's your job to fill them, but it turns out there aren't too many businesses interested in setting up shop in a dying mall.

You can try gimmicks like food trucks and indoor playgrounds to keep customers interested, but in the end your mall will bleed too much money to support itself. You can try playing the bleak game for yourself here—maybe it will put some of the retail casualties of the last decade into perspective.